Fix for Clang dev_mode Windows build

[bitsawer]

Adds a fix / workaround for dev_mode (all warnings and warnings as errors) build when building for Windows using Clang. Seems like a Clang issue, GCC apparently doesn't enable these warnings for -Wall.

Alterantively, we could maybe add -Wno-missing-field-initializers and -Wno-missing-braces when building with Clang to avoid these in the future, but this is probably a pretty rare issue.

Clang error:

platform\windows\display_server_windows.cpp:670:31: error: missing field 'biWidth' initializer [-Werror,-Wmissing-field-initializers]
                                BITMAPINFO bmp_info = { 0 };
                                                          ^
platform\windows\display_server_windows.cpp:670:29: error: suggest braces around initialization of subobject [-Werror,-Wmissing-braces]
                                BITMAPINFO bmp_info = { 0 };
                                                        ^
                                                        {}
platform\windows\display_server_windows.cpp:670:31: error: missing field 'bmiColors' initializer [-Werror,-Wmissing-field-initializers]
                                BITMAPINFO bmp_info = { 0 };
                                                          ^
3 errors generated.

[akien-mga]

Thanks!

[YuriSizov]

This shouldn't be cherry-picked as it fixes an issue introduced in #75142, which wasn't cherry-picked.